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CVE-2026-5548 is a remotely exploitable stack-based buffer overflow affecting Tenda AC10 firmware version 16.03.10.10_multi_TDE01. The flaw is present in the fromSysToolChangePwd function within /bin/httpd. According to the provided content, improper handling of the sys.userpass argument allows an attacker to supply crafted input that overflows a stack buffer. This memory corruption condition may lead to process crash or potentially arbitrary code execution in the context of the vulnerable HTTP service.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
6 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.